linux-kernel - Re: [PATCH 2/4] EXT4: Set NOSEC flag early when there are no xattrs

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Date:	Sat, 28 May 2011 07:24:08 -0400
From:	Chris Mason <chris.mason@...cle.com>
To:	Marco Stornelli <marco.stornelli@...il.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	viro <viro@...iv.linux.org.uk>, Andi Kleen <ak@...ux.intel.com>,
	tytso <tytso@....edu>
Subject: Re: [PATCH 2/4] EXT4: Set NOSEC flag early when there are no xattrs

Excerpts from Marco Stornelli's message of 2011-05-28 05:08:01 -0400:
> Il 28/05/2011 00:54, Andi Kleen ha scritto:
> > From: Andi Kleen<ak@...ux.intel.com>
> >
> > This avoids a xattr lookup on every write.
> >
> > Cc: tytso@....edu
> > Signed-off-by: Andi Kleen<ak@...ux.intel.com>
> 
> Are ext2/3 affected too? It seems to me that more or less the xattr 
> management for the extN series is the same, isn't it?

Yes, everyone who uses mbcache.

-chris
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